Nut-machine.



F. LACKNER.

NUT MAOHINE. APPLmATIoN PILBDVAUGAS, 1905. nmnzwnn Jung 3o. 1908.

B SHEETS-SHEET 1.

Patented Feb. 9, 1909.

Patented Feb. 9, 1909.

9 SHEETS-SHEET 2.

INVIN'I'OI Patented Feb. 9, 1909.

D SHEETS-SHEET 3,

FIGB- INVINTOR F. LACKNER.

NUT MAUHINE.

APPLIUATION FILED AUGB, 1905. RENEWED JUNE 30, 190B.

E Z IVEN'I'UI 47 Wm 6 F. LACKNER.

NUT MAHINE.

APPLICATION FILED Amma, ma RENEWBD JUNI: so. mofa Patented Feb. 9, 1909A I -nui WITNESSES:

F. LACKNER.

NUT MACHINE. APPLIOATION FILED Avenza, 1905. RBNBWBD JUNE 30,1908.

Patented Feb. 9, 1909.

9 SHEETS-SHEET 6.

INVENTOR P. LACKNER.

NUT MACHINE. APPLICATION FILED AUG. 23, 1905. RBNEWED JUNE 30,1908. 91 1,599. Patented Feb. 9, 1.909.

9 SHBBTS-SBBET 7.

o mi

79 78 Y /1 "L `h i o h 30 lY//////V/////, 7a 727/2 f3 f4 1a WITNESSES:

t? v *i 5 E mnu-ron P. LACKNER.

NUT MACHINE.

APPLIUATION FILED AUG.Z3,1905. BBNEWED JUNE 30,1908.

91 1,599, Patented Feb. 9, 1909.

Flam. Full?.

WITNESBES:

F. LACKNER.

NUT MACHINE.

APPLxoATIoN FILED weas. 1905. Mmmm Juul: ao, 190e.

Patented Feb. 9, 1909.

9 SHEETS-SHEET B.

FIEZ'Z WITNESSES: afm M .@f @aa-V ration of such preliminar UNITED sTATnsrATENT oFFrorJ.

FREDERICK LACKNER, OF PITTSBURG, PENNSYLVANIA., ASSIGNR TO N'EELY NUT di BOLT COMPANY, OF PI'I'ISBURG, PENNSYLVANIA.

NUT-MACHINE Speciiication of Letters latent.

Patented Feb. 9, 1909.

Application iiled August 23, 1905, Serial No. 275,4??- Renewed June SO, 1908. Serial No. 41,242.

T o all whom 'it may conceive.'

Be it known that l, Fnnnsnrolr LACKNER., residing `at Pittsburg, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, hnve invented or dis covered certain new and useful improvementsin Nut-Machines, of which improve ments the following is a speciiication.

The invention described herein relates to,

certain improvements in the manufacture of nuts,'washers, ete. lt has for its Object? a construction and combination of parts whereb a blank of smaller dimensions than the esired nut or washer is severed transversely from a-bnr or rod brought to the dimensions desired in the finished nut by punching, the metal displaced by the punch filling out the blank and then brin 'ng the blank to tl1e.desired size, sha e an coniiguration.

1 e invention is hereinafter more fully described and claimed.

` In the accompanyingr drawings forming a partici this speciiiczttion, Figure 1 is e top lan viewof my iin roved machine; Fig. Z 1s a side elevatlon o the same; Fig. 3 is a sectional View, the lane of section being indioatedvby the line dll-@lll Fig. 1;Figs. 4 and 5 are sectional views on )lane indicated by the lines lV--lV and v Y Fig. 3 Fig. 6 is a sectional elevation on e plane indicated by the line Vl-NI Fig. 2; Figs. 7 and 8 are sectional detail views on lanes `indicated res ectively by the lines VllVll and VIH@- Vl I Fig. 6; Figs. 9 to 20 inclusivev are detail views illustratin(y the operation' of parts of the machine; Figs. 21 to 27`inclusive `are similar views illustretin certain modiiicationein the operation of t e machine.

In the practice of, my invention a flut bei having e thickness and `Width less. than the corresponding dimensions desired in the finished nut, is fed transversely of the nia-- chine at a point shown in Figs. 1, 3 and 6. When the bar has reached, the proper posi tion jews 1 and 2, secured to slides and 4 moving in vertical' guideways, are moved in so as to effect a preliminary shaping ci e portion of the bar or rod and a partiel er pay sha. ed Jrifnation from the bar or rod as shown in Figs, 3 :n These slides 3 and 4 are connected. to yon;

es -amll susrnounding cams 7 and S yon shafts 9 and 10, which are rotated throughsuiiable ,5sy gearing `the .power shaft 11.

As shown in Figs. 3, 9, 13 and 15, the jews, 1 and 2, have their ends so shaped as to produce a hexagonal nut butitwill be understood b f th'ose skilled in the nrt that other forms nuts and Washers may be produced by suitably forming the shaping faces of the jaws and other shaping surfaces as hereinnfter described. The jaws 1 and 2 are V)rovided with cutting or indenting edges b ani c whichV enter the bar and partially sever the blank therefrom as shown in Fi s. 9 and 18. As will be seen by reference o Fig. 9, the bar and the blank'cut `therefrom have a width less than the transverse dimension desired in the finished nut and as will be seen by reference to Figs. 10, 11, 12 and 14 the bnr is of n, thickness less than the thickness oi the desired nut. ln order to bring the blank psrtiallysevered, as stated, 'from the bar approiri mately to' the dimensions desired in the fine` ished nut,fa unch 12 is caused to move forward while tlieblank is held in the jaws and pass nearl through. the blank. The metal displaced y the punch is forced laterally so 'as to iill the blenk out to conform with the matrix formed b the jaws 1 and 2 and the beck wall or die block 13 secured to the me chine. When it is desired to form a collar on the nut this die block is slightly recessed es shown in Figs. 1() to 14 so that some of the metal displaced by the punch will enter the said recess. In addition to increasing the transverse dimensions of the blank, the metal displaced by the punch will also eii'ect an increased thickness of the blank as shown in Fi s. 11, 12 and 14, As the punch 12 comp etes its inward movement, a compress-- ing plunger 14 is reused to move forward thereby compressing the blank in. the direction of its thickness and bringing the same to 95 the desired size and iinish except 'for the iins l left on the blank by the operation of the jaws 1 and 2. Alter compressing the blank the plunger, 14 is withdrawn and immediatoly thereafter the punch 12 begins its 10U nel shaping box 15, formed in the die-block As the punch im small web e left 13. As will be seen by reference, to Figs.l3 and l5, the feed movement of the blank and prevent a sagging down of the blank which 1s only supported by the thin web d, a su porting block 17 is moved up to supportv t e lank 1n a vertical direction. A compress` ing plunger 18 is now moved forward to force the blank into the box 15, thereby shearing off the webs or fins d. As the conlpressing plun er moves inward a similar compressing p unger 19 moves back to allow the entrance of the blank and a punch 20 is moved forward so that the blank can be forced over the same thereby removing a by the operation of the punch 12. The metal thus removed is forced into the compressing plunger 18, as shown in Fig. 18. The movement of the compressing plunger 19 is arrested so that a slight comression of the finished nut may be effected l; Y the inward movement of the plunger 18. T e plunger 18 now begins its backward movement and the lunger 19 moves forward, its movement being somewhat slower than that of the plun er 18 thereby forcing the finished nut out of theiinal or finishing matrix 15.

As shown in Figs. 2 and 6, the compressing plunger 14 is secured to a slide 21 connected to a yoke surrounding the cam 22 on the shaft 23. This cam operates only to effeet the inward movement of the shde and plunger 14, the outward movement bein effected by a cam 24, also on the shaft 23, and operating against a lateral extension 25 of the yoke connected to the slide. The punch 12 is connected t'o a slide 26 provided -with a yoke surrounding a cam 27 on the shaft 23, the rearward movement of the slide and punch being effected by means of a cam 28 operating against alateral extension 29 on the yoke of the slide. The reciprocation of the slide 3() carrying the compressing plunger 18 is effected by means of a cam 31 also on the shaft 23.

The preferred manner of mounting the slides and okes is clearly shown in Flgs. 6,. 7 and 8. he punch 20 and plunger 19 are secured respectively on slides 32 and 33 ro vided with yokes and mounted in suitable Vuideways on the bed of the machine, as can e clearly seen by reference to Fig. 7. The inward movement of the slide 32 is effected by a cam 34 on a shaft 35 and its outward movement by a cam 36 operating against a lateral extension 37 on the slide. The inward and outward movements of the slide 33 are effected by means of cams 38 and 39, the

bar is regulated by stop 16 and in order to I l l f in former operating in a yoke on the slide 33 the latter on the lateral extension 4() from thev yoke. In order to prevent any straining y of the shaft 35 durin 'f the compressing operal tion effected by the punches 18 and 19, the cam 34 of the yoke is so constructed and proportioned as to permit the slide 32 when in its rearward movement to bear against an adjustable abutment 41 preferably formed by a screw passing through a portion of the frame of the machine. The movement of the supporting block 17 to support the blank when shifted in front of the box 15 is effected by means of a cam 42 on the shaft 10, the cam operating merely to lift the block which will return to inoperative position by gravity. ln order to insure the removal of the iinished nut from the end of the plunger 19 when forced out of the box, a knocker 43 is operated by means of a cam 44 on the shaft 9.

In Figs. 21 to 27 inclusive I have shown mechanism for forming square nuts. As

therein shown a bar j of a width and' thickness less than he corresponding dimensions of the finished nut is fed transversely across a box or matrix in the die-block 13". When in this position the jaws 1 and 2 are moved down so as to form top and bottom extensions'of the die-box or matrix. The jaws 1n and 2 are provided with gripping eX- tensions45 which merely serve to hold the bar osition. As soon as the bar is gripped by t ese. jaws the plunger 14L is moved forward to'foree the metal in line with the box into the same and artially sever it from the bar f, as shown 1n Fig. 23. The punch 12a is now advanced to displace the metal in the center of the blank and cause the same to spread out verticall towards the upper and lower sides of the ox and the jaw extensions thereof, and also to produce an increased thickness of theblank. To allow this increase in thickness by metal displacement by the punch 12", the plunger 14 is slightly withdrawn durin the inward movement of the punch 12". git will be observed that one side of the box into which the blank is forced by `the plunger 14a is formed b the plunger 18". As the plunger and punc 14 and 12a are withdrawn so that the bar f and the blank on the end thereof, may be moved forward, the latter into line with a box 15 in the die block 13, the jaws 1 and 2 hav-V ing been previously withdrawn As soon as this feed of the bar and blank has occurred the jaws are again brought to operative position to 'grip the bar and to complete the preliminary shaping box in the block 13". As shown in Fig. 21, the plungers 14'1 and 18'* -are now moved forward together, the plunger 18a being a little in advance of the plunger 14". Bv the operation of Y these two plungers and the punch 12a a blank is preliminarily shaped and partially severed from the bar and the previously partiall formed blank is forced into the box 15EL and7 entirely severed from the bar. During the inward movement of the plunger 18, the plunger 19 is withdrawn so as to permit the entrance of the blank, and the punch 2()a is advanced so as to force the small web of metal e from faces, means for shifting such -iaws towards the blank into the passage throuh theplunsurrounding the punch, the dpunch and ger 18". The lungcr 18l shoul have .such plunger being movable indepen ent of each a movement re ative to the mo'gementof the other in a direction at right yangles to the plunger 14 that the end of the plunger 1S direction of feed of the bar to the iaws, and will be Within the Wall of the box 15 at the means for severing the blank from the bar time that the pluri er 14L and the punch 12,n and completing the perforation of the blank. operate 'to form a lank, for the reason that l 4. In a nut machine, the` combination of the punch 18 forms a portion of the matrix g @sectional matrix adapted to partially sever in which the blank is formed by the operation and preliminarily shape a section from the of the plunger 14 and 12a. bar or rod, a punch movable at an angle to While Ihave described herein animproved the line of feed of the bar or rod, means l or method for the manufacture of nuts, washl shifting the punch to partiallV periorate and ers, etc., such method is not claimed herein 1 i laterally displace a portion of the metal held asjbe same u ill lorm the subject matter of in the matrix and thereby spreading the paran application to be filed.

tially severed section while held in the I claim herein as my invention:

l matrix, a com ressing longer movable over 1. In a machine for formingvnuts, etc., the the punch, an means or severing the blank combination of jaws rovided 'with shaping' from the bar and completing the perforation of the blank. each other to grip and shape the end of the l 5. In a machine for formingr nuts, washers, bar or rod Without severingl such partially l etc., theicombinatioii of a sectional matrix shaped portion from the bar or rad, a punch, l adapted to partially sever, and partially means for forcing the puncli, partially g shape a section from a bar or rod, a punch through the blank to laterally, displace a o i'ei'ative at an angle to the direction of feed portion of the metal inclosed by the jaws, ol the bar or rod, means for shifting the and while held therein, and a plunger movpunch to partially ierforate and laterally able over the punch to compress and spread displace a ortion oi the metal held iii the lie metal held within the jaws, and means matrix an thereby enlarge the partially or severing the blankfom the bar and l severed section, a compressing plunger opcompleting the ies'forationi of the blank. eraive in line with the puni-li and means for 2. ln a maelii e for forming nuts, ctc., the removing the enlarged section from the liar `'combination of jaws movable towards and or rod. from each. other and provided with shaping'- G. In a machine for the manufacture of faces and havingT cuttingl or iiidentingr edges, nuts, washers, etc., the combination of adapted to partially shape thc end of a bar means for periplierally shaping; and paror rod withoutsevering the shaped portion tially punching a blank on the cud of the from* the bar, a punch for partial bar or rod without severing such blankfrom forating the blank and. thereby laterally the bar or rod, a matrix, hollow plungers arranged in line with the matrix and movable towards and from each other, a punch movable back and forth with one of the plungeis, means for shifting: the plungers displacing a portion of thc metal of thc blank toY enlarge the section of metal inclosed by the jaws and while held therein, a

y pei'- l i l l compressing: plunger movable over the l unch, and means for severing the blank towardsand from each other and means for rom the bar and completing the perforation shifting' the punch oppositrA to thc moveof the blank.

3. ln amachine for formin@` nuts, ete., the combination of )aws inovalLle towards and l l ment of the surrounding plunger. l from cach other, provided with faces adapted l i l l l l In testimony whereof,1 l have hereunto set .my hand.

FEEDER [CK LACKN ER.

Witnesses:

ALieE A. TiuLL, BAYARD H. QHRISTY.

to artially sli'ape, but not sever a portion of a ar or rod from the lattei, a punch for lareralll dis lacing a portion of the metal inclose in t e jaws, a compressing plunger 

